Lua APA (7ú heag.)

Pugel, T. A. (2016). International economics (16th ed.). McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Pugel, Thomas A. International Economics. 16th ed. New York, NY: McGraw-Hill, 2016.

Lua MLA (9ú heag.)

Pugel, Thomas A. International Economics. 16th ed. McGraw-Hill, 2016.

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